The formation of steel–concrete composites using individual steel and concrete elements is commonly ensured by two different connection techniques at connected interface level: mechanical connectors and structural adhesives. Among these two connection techniques, the use of structural adhesive for bonding steel and concrete elements is rapidly increasing; primarily owing to uniform transfer of stresses over the entire bonded area. The behaviour of bonded connection with change in adhesive bond layer thickness at the level of composite interface are analysed using finite element analysis under static loading to examine the ultimate strength and shear stresses. The failure governing parameters of bonded connections, such as engendered stresses in terms of von-mises and hydrostatic stresses at bearing ends of the composite interface along with changes in failure patterns (from adhesive to cohesive) are discussed. Also, the maximum engendered stresses along the failure plane for different bond layer thicknesses are examined. In case of one mm bond layer thickness the variation in shear stresses is very high along (39.28 MPa to 23.15 MPa) and perpendicular (34.62 MPa to 16.97 MPa) to the loading direction. While, the specimen with three mm thickness exhibits maximum load bearing capacity, it also has relatively smaller variation in shear stresses along (34.91 MPa to 21.72 MPa) and perpendicular (32.72 MPa to 17.20 MPa), which shows uniformity of stresses with increase in thickness. However, a further increase in the thickness of the bond layer results in reduction in the shear capacity of the specimen.

使用单独的钢和混凝土元件形成钢-混凝土复合材料通常通过连接界面层面的两种不同的连接技术来确保：机械连接器和结构粘合剂。在这两种连接技术中，用于粘合钢和混凝土构件的结构粘合剂的使用正在迅速增加；主要是由于整个粘合区域的应力均匀传递。使用静态载荷下的有限元分析，分析了复合材料界面处粘合剂层厚度变化的粘合连接行为，以检查极限强度和剪切应力。粘合连接的失效控制参数，讨论了复合材料界面的轴承端处产生的冯米斯应力和静水应力以及失效模式的变化（从粘合到内聚）。此外，还检查了不同粘合层厚度沿失效平面产生的最大应力。在粘合层厚度为 1 毫米的情况下，剪切应力沿加载方向（39.28 MPa 至 23.15 MPa）和垂直方向（34.62 MPa 至 16.97 MPa）的变化非常高。同时，3 mm厚度的试样表现出最大的承载能力，其沿（34.91 MPa至21.72 MPa）和垂直（32.72 MPa至17.20 MPa）的剪应力变化也相对较小，这表明随着厚度的增加应力的均匀性。然而，